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help, it keeps saying "failed to fetch" fetching the upgrade failed. There may be a network problem" but i am connected to the internet with lan.

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This could be because both 10.10 (or 11.04 - not sure which it actually is via your question having both tags) are EOL (End Of Life).

From that page:

When an Ubuntu release reaches its “end of life” it receives no further maintenance updates, including critical security upgrades.

thus explaining your lack of updates.

You need to upgrade to a supported version as soon as possible, as you're currently open to security vulnerabilities that will not be patched.

If you need help doing this, read over this Wiki page and feel free to ask more questions if you need more help beyond what the Wiki can offer.